Features:Powerful speed control fan for optimal performance and noise reductionThermistor sensor 3050 to 6000 RPMCFM output determined by temperature changesTwo ball bearingSpecifications:Model: AFB0712HHB-SX03 / 5R24Fan Size: 70x70x15mm Bearing: 2 Input Voltage: 12 VDC Rated Current: 0.07~0.35A Power Input: 0.84~4.20W Speed: 3050~6000 RPM Airflow: 21~41 CFM Noise: 28~46 dB-A Connector: 3 Pins